Weird sound when turning on the car.

[shingwai]

LOL

mmmmmmmmmmmm?

[shingwai]

As advised from a mate, this sound like a classic piston pin slap. It is very common with 2.0L - 2.5L engines and it gets louder with age. If this is the case, it is really nothing to immediately worry about. Engines go well over 100K miles with this problem with no lasting detrimental effects. I would however take it in to a repair shop just to verify the problem.

[shingwai]

Another thing to add is that keep in mind that the oil you use has an impact on the way your engine warms up and operates when cold. You might solve the problem by using different grade oil.

What oil are you using now?